diff --git a/requirements.txt b/requirements.txt
index 029cce6..8e3ff1e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,9 @@
 pytest
-networkx
+networkx>=2.1
 numpy
 pandas
 shapely
 pyproj
 matplotlib
 nose
-pytest-mpl
\ No newline at end of file
+pytest-mpl
diff --git a/setup.py b/setup.py
index 0551e64..7219a4e 100644
--- a/setup.py
+++ b/setup.py
@@ -9,7 +9,7 @@
                  author_email='mfuchs@eonerc.rwth-aachen.de',
                  license='MIT License',
                  packages=setuptools.find_packages(),
-                 install_requires=['pytest', 'networkx', 'numpy', 'pandas',
+                 install_requires=['pytest', 'networkx>=2.1', 'numpy', 'pandas',
                                    'shapely', 'pyproj', 'matplotlib',
                                    'nose', 'pytest-mpl', ],
                  classifiers=("Programming Language :: Python :: 3", ),